Cutting tool with work gripping means

ABSTRACT

1,067,688. Hand shears; pliers. HAWKER SIDDELEY DYNAMICS Ltd. Dec. 1, 1965 [Dec. 1, 1964], No. 48882/64. Headings B4B and B4W. Snips, scissors or cutting pliers are provided with a gripping member so situated in relation to one of the blades that gripping or trapping of a work portion to be severed occurs between the member and the other blade, or a part associated with the other blade, on closure of the blades, the gripping member comprising a removable portion of elastically-deformable material mounted on a resilient element carried by said one of the blades. In the wire snips shown, the gripping member consists of a removable plastics or rubber sleeve 11 surrounding a steel pin 12 which is fixed to the blade 13 such that when a wire is severed, the severed portion is gripped between the sleeve 11 and the blade 14, at least until the blades are opened. Variations are described. For example, the deformable member may have a movable support on one blade which is arranged to go over-centre when the blades are closed Further, two or more deformable members may be provided alongside one another on one blade, the other blade being shaped to co-operate with all the deformable members simultaneously. Still further, the deformable member may form an extension of one blade to meet with a corresponding extension on the other blade when the blades are closed.

3mm 1967 s. N. BEESON CUTTING TOOL WITH WORK GRIPPING MEANS I Filed NOV.30, 1965 United States Patent 0 3,327,389 CUTTING TOOL WITH WORKGRIPPING MEANS Samuel Neville Beeson, Tyldesley, near Manchester,England, assignor to Hawker Siddeley Dynamics Limited, Hatfield, EnglandFiled Nov. 30, 1965, Ser. No. 510,644 Claims priority, application GreatBritain, Dec. 1, 1964, 48,882/ 64 1 Claim. (Cl. 30124) This inventionrelates to cutting tools of the type wherein two or more blades interactto provide a shearing. action.

It is mainly concerned with hand tools, e.g. snips, pliers, scissors andthe like and its object is to prevent the portion of the work that is tobe severed from falling or flying free at the moment of shear.

According to the invention a cutting tool is provided with anelastically deformable member so situated in relation to one of theblades that gripping or trapping of the Work portion to be severedoccurs by said member and the other blade, or a part associated with theother blade, on closure of the blades. Thus, the severed portion is helduntil it can be collected or otherwise dealt with, instead of falling tothe floor or flying off at the instant of cutting.

The elastically deformable member may be supported on a resilientsupport member and may, if desired, be removable therefrom.

One form of tool embodying the invention will now be described by way ofexample and with reference to the accompanying single figure drawing, inwhich is shown in pictorial view a pair of side cutting wire snipsprovided with a Work-holding gripping member in accordance with theinvention.

In the drawing, the wire snips as shown comprise two lever members 1, 2pivotally connected at 3 and having handle portions 4,5 and jaw portions6, 7. The jaw portions 6, 7, have cooperating wire-cutting blades 13,14. A work-gripping member is provided consisting of a removableelastically deformable sleeve 11 or synthetic 3,327,389 Patented June27, 1967 "ice plastic or rubber surrounding a resilient steel pin 12,said pin being fixed to one jaw 6 of the snips, quite close to and moreor less parallel with the cutting edge of the blade 13 on that jaw, in aposition such that when a wire is severed the severed portion is grippedbetween the sleeve 11 and the other blade 14, at least until the bladesare opened.

It is apparent that the sleeve need not contact the other blade uponclosure of the blades if the workpiece is of sufficient thickness butmerely has to come close enough for deformation to occur in trapping thesheared portion of the workpiece.

I claim:

A cutting tool having a pair of jaws with cooperating blades andprovided with a work-gripping member so disposed in relation to one ofthe blades that gripping or trapping of a work portion to be severedoccurs between said member and the other blade on closure of the blades,said gripping member comprising a resilient metal pin having a removablesleeve mounted on a portion thereof, said sleeve being formed of anelastically deformable material, said pin being located between the jawsand affixed to one of said jaws adjacent a cutting edge on said oneblade, and said portion of the pin carrying said sleeve extendingsubstantially parallel with the cutting edge.

References Cited UNITED STATES PATENTS 403,500 5/1889 Wingenroth 30-135406,524 7/1889 Jennings 30135 2,302,810 11/1942 Steegmuller 301242,775,032 12/1956 Sorenson 30134 2,814,869 12/1957 Matson 30-1242,985,957 5/1961 Freedman 30124 FOREIGN PATENTS 10,064 7/ 1895 GreatBritain.

WHJLIAM FELDMAN, Primary Examiner.

G. WEIDENFELD, Assistant Examiner.

